[Pytables-users] Lists of pytable objects

[<le...@cn...>]

I am just starting to work with python and pytables and have a question for
the group.

We have multiple HDF5 files, each of which contains 30 seconds of data from
a longer sequence. Rather than merge the data, we'd like to be able to
create a list (or array) of pytables objects and operate on
them simultaneously. For instance we have three h5 data files, each of
which can be opened with the openFile command.

data_1=tables.openFile(fname_1)
plt.plot(data_1.root.photon.channel001.elev[:])

If we define the following list:

all_data=[data_1, data_2, data_3]

the we can do the following :

plt.plot(all_data[0].root.photon.channel001.elev[:])

What we'd like to do is plot the data from all three (or more generally, N)
hdf5 files simultaneously:

plt.plot(all_data[0].root.photon.channel001.elev[:])

but this doesn't work. Is there a syntax that will work for this ?

M
-- 
Michael Lefsky
Center for Ecological Applications of Lidar
College of Natural Resources
Colorado State University
http://www.researcherid.com/rid/A-7224-2009

If I were creating the world I wouldn't mess about with butterflies and
daffodils. I would have started with lasers, eight o'clock, Day One! - Time
Bandits